# US 10,481,418 B2 · Method for determining a parameter of an optical equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,481,418 B2 - Document ID: US10481418B2 - Status: Granted - Kind: B2 - Application number: 15/750,025 - Filed: 2016-08-04 - Published: 2018-08-09 - Granted: 2019-11-19 - Earliest claimed: 2015-08-05 - Assignees: Essilor International - Applicants: Essilor International - Inventors: Stephane Gueu; Jean Carrier - Web page: https://patentgrep.com/patent/US10481418B2 ## CPC - G02C 13/003: {Measuring during assembly or fitting of spectacles} - G01M 11/0207: {Details of measuring devices} - G01M 11/0214: {Details of devices holding the object to be tested} - G01M 11/0228: {by measuring refractive power} - G01M 11/0264: {by using targets or reference patterns} - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR ## Abstract A method for determining a parameter of an optical equipment, including: an optical equipment positioning, during which an optical equipment including a pair of optical lenses mounted on a spectacle frame is positioned in a first position; a portable electronic device positioning, during which a portable electronic device including an image acquisition module is positioned in a second position determined and/or known relatively to the first position to acquire an image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position; a parameter determining, during which at least one optical parameter of the optical equipment is determined based on the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position. ## Claims ### Claim 1 A method for determining a parameter of an optical equipment, the method comprising: positioning an optical equipment comprising a pair of optical lenses mounted on a spectacle frame in a first position; positioning a portable electronic device comprising an image acquisition module in a second position to acquire an image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position; determining at least one optical parameter of the optical equipment based on the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position, wherein, prior to the determining, the second position is determined relative to the first position using measuring means. ### Claim 2 (depends on 1) The method according to claim 1, further comprising a positioning a pattern in a third position relative to the optical equipment to allow the portable electronic device in the second position to acquire an image of the pattern seen through at least part of the optical lenses of the optical equipment in the first position. ### Claim 3 (depends on 2) The method according to claim 2, wherein the third position is determined and/or known relatively to the first and/or second position. ### Claim 4 (depends on 2) The method according to claim 2, wherein the optical parameter is determined by comparing a pre-acquired image of the pattern with the image of the pattern seen through at least part of the optical lenses of the optical equipment in the first position. ### Claim 5 (depends on 1) The method according to claim 1, further comprising determining the relative distance between the image acquisition module of the portable electronic device and the optical equipment using at least measuring means of portable electronic device or using at least measuring means including a printed sheet having specific printed features or using a known size element positioned at the second and/or third position. ### Claim 6 (depends on 1) The method according to claim 1, wherein the optical parameter of the optical equipment comprises parameters selected from: an optical power in a visual reference zone of the optical lenses, an optical cylinder in a visual reference zone of the optical lenses, an optical cylinder axis in a visual reference zone of the optical lenses, a prism in a visual reference zone of the optical lenses, and a type of optical design of the optical lenses. ### Claim 7 (depends on 1) The method according to claim 1, further comprising: determining at least one fitting parameter of the optical lenses in the spectacle frame based on an image of the spectacle frame acquired by the portable electronic device and the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position, wherein the fitting parameter is determined based on the position of a reference point of the optical lenses relative to the spectacle frame. ### Claim 8 A device for determining at least a parameter of an optical equipment comprising a pair of optical lenses mounted on a spectacle frame, the device comprising: a receiving element configured to physically receive the optical equipment in at least a first predetermined position; an acquisition receiving element configured to physically receive a portable electronic device having an image acquisition module in at least a second predetermined position relative to the optical equipment received by the receiving element to acquire an image of a distant element seen through at least part of the optical lenses of the optical equipment received by the receiving element. ### Claim 9 (depends on 8) The device according to claim 8, further comprising at least one predetermined pattern to be used as the distant element. ### Claim 10 (depends on 9) The device according to claim 9, wherein the predetermined pattern is in at least a third predetermined position relative to the first and second predetermined positions. ### Claim 11 (depends on 8) The device according to claim 8, further comprising means for determining the position of the distant element relative to the first and/or second predetermined positions. ### Claim 12 (depends on 8) The device according to claim 8, further comprising a light reflecting element configured to reflect a pattern displayed on a screen of the portable electronic device to provide a distant element to be acquired by the portable electronic device through at least part of the optical lenses of the optical equipment received by the receiving element, wherein the device is configured so that light emitted by the screen and forming the pattern passes a first time through at least part of the optical lenses of the optical equipment, then is reflected by the light reflecting element, then passes a second time through at least part of the optical lenses of the optical equipment then passes into the image acquisition module of the portable electronic device such that an image of the pattern is acquired by the image acquisition module of the portable electronic device, and the portable electronic device is selected from a smartphone, a personal digital assistant, or a tablet computer. ### Claim 13 A method for ordering a new optical equipment for a user of a first optical equipment, the method comprising: positioning the first optical equipment comprising a first pair of optical lenses mounted on a first spectacle frame in a first position; positioning a portable electronic device comprising an image acquisition module in a second position to acquire an image of a distant element seen through at least part of the optical lenses of the first optical equipment in the first position; acquiring at least one image of the distant element seen through at least part of the optical lenses of the first optical equipment; adjusting the relative position of the portable electronic device and the first optical equipment based on an identification of at least part of the optical equipment and/or the portable electronic device; sending an order request for a new optical equipment to a distant entity, the order request comprising the at least one image acquired by the portable electronic device and new optical equipment identification data. ### Claim 14 (depends on 13) The method according to claim 13, further comprising determining at least one optical parameter of the optical equipment based on the image of a distant element seen through at least part of the optical lenses of the optical equipment in the first position. ### Claim 15 (depends on 13) The method according to claim 13, further comprising providing a device to position the first optical equipment and a portable electronic device. ### Claim 16 (depends on 13) A method for providing optical equipment for a person, the method comprising: receiving an order request generated by a method according to claim 13 comprising at least an image of a predetermined element seen through at least part of the optical lenses of the first optical equipment of the person; determining at least one optical parameter of the optical equipment based on the at least one received image; providing a new optical equipment to the person based on the at least one optical parameter determined during the parameter determining.